[tdangle]

I have the 350/357 crate motor in my 70 with 2004r trans stock converter and 4.10 gears. It does what I consider a mild idle, but pulls strong. I would suggest around a 2400 stall converter and whatever you do don't get the deluxe version with HEI diet and carb like I did. Get a dist that you can tailor the curve and limit the total advance, this engine likes more initial timing than the recommended 10 and you need to limit the total from the dist so you are in the 32 degree range with it all in (initial + mechanical advance) and add about 15 vac for cruise. I had nothing but idle issues with the shipped carb a Holley 670 street avenger. Finally borrowed a like new Holley carb in their classic line and works way better. If I had to do it over get the L31 replacement (now available again) and probably a Sniper EFI with timing control or even better Edelbrock proflow system. for $500 or so more.