My truck is not getting enough spark to run and I need some help.
 

I have a 1974 GMC 1500 2wd, long bed, with factory heavy duty suspension and a towing set-up. It has a rebuilt 350 4 bolt with a 4 bbl. with about 5600 miles on it. I got this truck back in august and have only put a few miles on it. It ran perfect for a few months untelone day it started to cut out and misfire. This got worse at a rapid pace and it got to a point where it just wouldn't run at all. A few good backfires is the last I heard from it when it was still going. I have since then replaced the cap, rotor, points, condenser, wires, plugs and coil and it just doesn't want to get enough spark to run. It is getting a very limmited amount but it is very weak. The original condenser was bad and wouldn't take any voltage. I noticed that there was oil inside the distributer so I am thinking thats whats causing the problem. What do you guys think?

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'29 Chrysler model 65 all original, 2nd owner ***FOR SALE***
'63 Impala SS 283, 3-on-the tree, flowmaster 2 1/4" dual exhaust, performer intake, edelbrock 600 carb, chrome 15x8 rally's
'65 Impala SS, built 332, 700R4, 3.73, 2 1/2" mandral bent duals w/H pipe, Flowmaster 40-series deltaflows, MSD Mallory, too many modifications to list
'72 Chevy Suburban 4x4, NP205, TH350, balanced 357 (.040 350), 268 high energy cam, 9.2:1 comp, 1.94/1.50 heads (ENGINE BUILT BY THE GREAT RAYZOR or if you know him RAY, WHO POSTS ON THIS BOARD AND CHEVYTALK), 3/4 ton leaf springs, 4" lift, 35/12.5/16.5 Grabber MT's, Rancho shocks, Rancho dual steering stabalizer, American Eagle 143's 16.5x9.75 6 lug, 4.10's, 12 bolt rear limited slip, Dana 44 front limited slip. Carter 600, performer intake, headers and flowmaster exhaust system very soon.
'74 GMC 1500 Super Custom, Factory 3/4 ton springs, rebuilt 350/TH350, ceramic headers, 2 1/2" duals w/ H-Pipe, 40-series delta-flow Flowmasters, Gibson tips, 15x8 eagle alloy 058 wheels and 31/10.5/15 ProComp M/T's, Fey Outlaw 8" drop bumper. More mods soon...
'95 Impala SS Flowmaster cat-back, K&N, 285/40/17 Firehawks, Dark cherry metallic, 27,000 miles, extreamly fun vehicle
'95 Chevy K2500, ex-cab, long bed, 350, AT, Flowmaster cat-back, 265/75/16 Mud Kings, 16x7.5 Centerline HT cast
wheels, Leer high rise canope, bed liner w/ mat, loaded.**FOR SALE**

I would ditch the points and get an HEI distributor. It's a straight drop in. If oil is getting into your distributor cap then you should replace it.

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Gerardo
1983 Custom Truck
TX Plates: "BAD BOW"
http://www.geocities.com/abetterchemist/

Thats kind of what I was thinking. I might even throw on a performer manifold while i'm at it. So oil in the distributer could cause it to get very poor spark?

Thanks,
Erik

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'29 Chrysler model 65 all original, 2nd owner ***FOR SALE***
'63 Impala SS 283, 3-on-the tree, flowmaster 2 1/4" dual exhaust, performer intake, edelbrock 600 carb, chrome 15x8 rally's
'65 Impala SS, built 332, 700R4, 3.73, 2 1/2" mandral bent duals w/H pipe, Flowmaster 40-series deltaflows, MSD Mallory, too many modifications to list
'72 Chevy Suburban 4x4, NP205, TH350, balanced 357 (.040 350), 268 high energy cam, 9.2:1 comp, 1.94/1.50 heads (ENGINE BUILT BY THE GREAT RAYZOR or if you know him RAY, WHO POSTS ON THIS BOARD AND CHEVYTALK), 3/4 ton leaf springs, 4" lift, 35/12.5/16.5 Grabber MT's, Rancho shocks, Rancho dual steering stabalizer, American Eagle 143's 16.5x9.75 6 lug, 4.10's, 12 bolt rear limited slip, Dana 44 front limited slip. Carter 600, performer intake, headers and flowmaster exhaust system very soon.
'74 GMC 1500 Super Custom, Factory 3/4 ton springs, rebuilt 350/TH350, ceramic headers, 2 1/2" duals w/ H-Pipe, 40-series delta-flow Flowmasters, Gibson tips, 15x8 eagle alloy 058 wheels and 31/10.5/15 ProComp M/T's, Fey Outlaw 8" drop bumper. More mods soon...
'95 Impala SS Flowmaster cat-back, K&N, 285/40/17 Firehawks, Dark cherry metallic, 27,000 miles, extreamly fun vehicle
'95 Chevy K2500, ex-cab, long bed, 350, AT, Flowmaster cat-back, 265/75/16 Mud Kings, 16x7.5 Centerline HT cast
wheels, Leer high rise canope, bed liner w/ mat, loaded.**FOR SALE**

Oil in the cap can be one source of the problem. The other is more serious. If the bottom portion of the distributor is not seated correctly, one side of your engine is not getting the same oil pressure as the other side!! Since the distributor is going to be out replacing the intake with an Edelbrock Performer or RPM dual plane type will help your engine breath better. Performers start at only $119.00.

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Gerardo
1983 Custom Truck
TX Plates: "BAD BOW"
http://www.geocities.com/abetterchemist/