Have I made the right choices?

Sorry, I'm misunderstood, I was just using this as a reference, I'm not telling him to do this, I'm just showing him that he can make some real good power without having to do alot of stuff to his engine.
Now IMO I would keep the short block and put the small heads on from a 318 along with a 750 cfm carb 3310, because the secondaries are vacume operated. This way he can run on a 2bbl when street driving and have the option of a 4bbl when needed, or when the engine needs it. I use to run a 600 holley and went to a 750 and the gas mileage didn't change but the power did, and the engine became more driveable. Keep in mind that a 750 vacume carb when on the primary 2bbls is only 325cfms as rated, being that they are the same size front and rear venturies. Most 318s came with a 300cfm carb or there abouts, this was the small 2bbl and the large one has about 350cfms.
This is what I would do but once again this is just my opinion. With the engine done this way I was getting 15-16mpg in a P/U truck with a 3.08 gear.


BJR Racing