I just got a gmc 302. I want to build it up some. I was thinking of the 5 two intake and running 3 holley 94's on it.(just something about multi carbs!) Who sales the lump ports for the heads. How much can you safely plane the head. And I have been told to use sbchevy valves. I have read to use the 248 crank and punch it .100 over But what rod and pistons do you use? Or is there a rod and piston combo for the stock crank maybe even to offset grind the crank? Would like to have lighter pistons for more RPM. What and who's cam would you sagest for a mostly weekend only street truck?
This is going in a 53 GMC pickup.
Thanks
