[SRT8-X]

[QUOTE=68 P.O.S.;8373603]First, have you verified top dead center with your balancer/zero timing mark?

Thanks for the reply. Yes, TDC was verified with the #1 screw in tool and was previously done with the compression as well.

Your timing sounds right on; 36 total is perfect. All in at 3200 rpm isn't bad. 2800-3000 may be a little better, but nothing of concern. You said the distributor is "calibrated to 24 degrees at 3000 RPM per the build specs and for street applications". Does that mean the mechanical advance is 24 degrees? How many degrees does the vacuum advance provide?

I’m going to call Performance Distributor tomorrow to ask about this and if it changes anything. I’m assuming the 24 degrees is all mechanical as they instruct purchasers to set timing with the vacuum advance disconnected which I followed. I have not timed with the advance connected but I can do this to verify what the vacuum advance is adding.

Do you still have the manual for the carb? You need it to setup the carb up right and calibrate it. You're gonna have to open your carb and set the float levels. They're always off out the box due to shipping and whatever. Since you have 20" vacuum, your step up springs should be the plain silver ones that come in the cal kit. Silver is the strongest/stiffest set.

Yes, I have the manual. I’ll definitely take a look at the floats and set them as well as trying the plain silver step up springs.

What cam and specs? Fuel pump install ok? Any degraded or twisted fuel lines? Sounds like you have enough fuel pressure.

Funny thing is the fuel pressure was consistent 5.5 psi when installing the fuel pump but now reads 4.5 or so a month later. This install went smooth but I did notice an oil leak at the pump base I need to take care of. The fuel lines are all new and I used all high end aluminum fittings along with the Edelbrock braided hose hit to the metal filter and carb fuel line.

Does the fact that this only occurs consistently when hot make a difference with some of these suggestions? Thanks again for the responses. These are helpful.