Starting the fabbing process of putting a Dana under my junk. My question is how much et would I lose dropping from 4.30s to 4.10s? My combo is a 10.6 to 1 440, in a 3800 lb car, 28 inch tall ET street radials, 8 inch TA converter that flashes 4900ish. Best ET is 11.33@ 117.72, turns 6500 out the back. Best ets are shifting at 6200.
Ive got 4.30s in the 8 3/4 in it now and Ive got a 4.10 R&P for the 60 already, Id like to not have to buy 4.30s unless there is gonna be a big difference.
What ya think?
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,.
11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid.
12.24@110.
