The easy answer for these two examples is...... the cfm/ci is better for engine 1.
Take engine 2, install some TF270’s and a racy single plane and watch the hp/ci go up.
Engine 1 has about 5.5cfm/ci. Engine 2 is closer to 4.6.
The TF270’s would put the 505 in the 5.5cfm/ci range.
The better heads should put the 505 in the 1.30-1.40 hp/ci range.
The current two combos have the bigger motor making more tq/ci.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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