Pulled 440 out of 72 New Yorker 86,000 miles on odometer installed an old .572 Ultradyne solid cam and Torkker intake never took the heads off. Stuck it in my 70 GTX 4spd with 3.54 gears car easily weighed more than 4,000 pds and ran 12.80's for 2 years drove it everyday then pulled it out stuck stock cam and intake back in it when car was sold