Hey DeuceCoupe, thanks for the analysis!
What does the Gonkulator say about stock 230?
What do you think about FITECH EFI?
Holley 570 CFM? THANKS!
Stock 250 (no other changes from above 15.82 at 85.2):
Torq 229 at 2600
Powr 154 at 3800
2.39 (same as above across the intersection)
10.99 at 61.1 1/8 mi
17.53 at 74.4 1/4 mi
10.4 0-60mph
That's about 16 carlengths behind your new build, LOL.
No idea on that EFI, never run it myself. I'm sure it would run at least as good as the carb and use a lot less gas, just depends on the price.
Those 570 / 670 / 770 Street Avenger Holleys are kinda strange. I have never had one but have heard the idle transition circuits are not as good as the old Holleys. Maybe they fixed that who knows. And I don't know how they are "flowed" but per the venture & throttle sizes:
570sa = 450cfm Holley old school
670sa = 600cfm
770sa = 780cfm
So the 570sa would be a good fit for your engine except I cant comment on that idle transition funny business.
