Originally Posted by skids72
Yeah, I'm pretty much breaking all the rules running a DP with a 3300# car and an automatic... And yes it can be done but it ain't so easy as you pointed out and hence some of the problems I'm having now.
I was running a 750dp last year with a "tamer" cam (.540, ~240) and smaller motor (and an extra 100lbs), never had a bog but was running the same converter which was a better match to the cam. This is a race car that gets street driven so I can't expect it will run like a daily driver so I make some compromises. Thanks for the Holley tech tip on the power valve selection... It seems you all agree (great minds think alike!).
I think the risk I have now with running the 6.5 is I can be fouling plugs faster but dropping the power valve shouldn't cure the bogging problem(?)
Yes bog could also be too rich or pump timing. I'm not getting smoke out the exhaust so I don't think it's too rich. Pump does begin squirt on each primary and secondary as the plates begin to open... secondary opening is delayed quite a bit (maybe 30*?) from the primaries.
I think while staging on the TC at a bit over 3200rpm, the secondaries are probably not even cracked till I take off. Or maybe they are cracked when I don't get the bog(?)
As I said, I think the root is that I sometimes can't get the revs high enough for the cam and I'm trying to find if I can compensate to a degree with the carb.
I'd just like to know if I'm wasting my time with the carb or if I need to take more steps to cool the trans and/or get a new converter...
Thanks again for all the advice...
Chris