Are you talking about the machined 4bbl intake, or the 4-2 "bolt on" carb adapter?T1H5_TA3 said:boy that 4 to 2 adapter sure lookes like a great way to over carb an eng. nothing like killing port volocity in an effort to make torque:flipoff2:
some people just need to go back to freshman year shop class...
If it's the machined intake..
Is it really killing port velocity? It necks it down which should increase velocity vs two "huge/straight" holes, right?
And I'm not looking for <2000rpm throttle response, either.. if I could find a good single-plane intake for the 304...
On the 4-2 adapter.. It was an experiment. Unfortunately, with two weekends of racing behind me, I found NO improvement with the 600cfm square-bore Holley 4-2 over the 500cfm 2bbl Holley.
I'll drag race it on Memorial Day and see if my ETs drop at all.. if I'm still right at 7.0s that'll help verify "no change"..
But maybe I'll have my machined 4bbl intake ready to go by then.