Thread: Tuning 428 for throttle response

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i dont think any of us will nail your problem on the first stab .. ( although jerry most likely did ) you simply need to play with things .. i`d start by increasing the size of you carb squirters .. you probably have 28`s there now .. go up to 30`s and see what gives . then play with the pump cam .. it should have several settings .. you mite play with the advance springs in your distrubitor .. go with a lighter set ..

I looked and the squirters are #25's....so I can start there. I also noticed that the mufflers in my side pipes are 1 7/8's ID,seams kinda small?
As for 1 carb....yah it would run better just not that wow factor!
Jon