my Low dollar 318 hop-up project

273 said
I got a magazine article where they dyno a dead stock 2bbl 318. But had to use headers cause of the dyno before they did there cam and intake upgrade and it made 186 hp. And made 282 hp @ 5000 with XE262H and 4bbl.
Probably puts the 318 100 hp under factory 340 hp numbers.

The headers do seem to make a big difference from stock.

RAMM said
Doesn't matter--not near enough for OP's goal with manifolds and highway rear gearing. OP needs 300+hp and 340-360 ft/lbs. The manifolds and 2.76 gears are only 2 limitations but they are the 2 worst limitations. J.Rob

That's what I can't help but think. If the 2bbl was still there it'd be the trinity to keep it way up in the clocks.

rumblefish360 said
Evil66, our car also came with 2.92 and a super Hwy. gear of 2.45.
Just I case you need to go really really far on a small amount of gas OR travel at 190+ mph. Just incase!

3.21/3.23 were also a normal find.

It's funny cause it doesn't take a whole lot to make these cars able to do 120-150 with the highway gears like they but they sure didn't stock. Interesting what such seemingly small numbers (like 30) of horsepower can do. Apparently 225 and A/C often got 3.23s. I forget the multiple of the 2.9 for the 8-1/4s and 7-1/4s but I think that one was actually very common on base I6 and V8 cars before the 2.45s came out.