New 383 problems........ - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69GMC910 · 04-24-2007, 10:07 PM

So i recently put a 383 in my 82 GM. It has flat top pistons, edelbrock 64cc perf. RPM heads, XE 274 cam, perf RPM intake, 750 edel. carb, and hedman headers through 2 1/4 flowmaster 50's.

My problem is that, well, #1 The drivetrain isn't finished. I am currently still running the T350c and the 3.07 or 3.08 rear gears, which as a combo for this engine are useless. #2 I have some studdering issues under light acceleration from a stop, I have dead spots in acceleration between 2000-3000 rpm, in all gears. Once I hit 3000 the thing is like a rocket. Is my problem most likely timing related, fuel related, or something completley different???? I am worried that i am experincing cam failure.

I am also in need of new plug wires as when I touch mine i get ZAPPED!!!! Could this be a contributing factor?!?!?!?!!?!

I have a 10" convertor for it, I just need a non lock-up tranny and I wanna switch to a completly different rear end. Suggestion????? Ford 9", Eaton, Detroit?

Also, anyone running the XE274, what do you set your timing at???

THANKS!!

910

www.myspace.com/attackaddict

04-24-2007, 10:07 PM	#1
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	New 383 problems........ So i recently put a 383 in my 82 GM. It has flat top pistons, edelbrock 64cc perf. RPM heads, XE 274 cam, perf RPM intake, 750 edel. carb, and hedman headers through 2 1/4 flowmaster 50's. My problem is that, well, #1 The drivetrain isn't finished. I am currently still running the T350c and the 3.07 or 3.08 rear gears, which as a combo for this engine are useless. #2 I have some studdering issues under light acceleration from a stop, I have dead spots in acceleration between 2000-3000 rpm, in all gears. Once I hit 3000 the thing is like a rocket. Is my problem most likely timing related, fuel related, or something completley different???? I am worried that i am experincing cam failure. I am also in need of new plug wires as when I touch mine i get ZAPPED!!!! Could this be a contributing factor?!?!?!?!!?! I have a 10" convertor for it, I just need a non lock-up tranny and I wanna switch to a completly different rear end. Suggestion????? Ford 9", Eaton, Detroit? Also, anyone running the XE274, what do you set your timing at??? THANKS!! 910 www.myspace.com/attackaddict __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph Last edited by 69GMC910; 04-25-2007 at 12:34 AM.



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