Stop in for a cup of coffee

I am guessing a big wedge under the hood.
His cam is actually smaller than mine but way more duration... i make bad choices :)

originally motor is 360 crate magnum with little changes, there is ross xl400 .30 pistons and compression is 10.5, hydr roller original crate cam 288* / 292* roller. .501"/.513" lift (230*/234* @ .050), with little better hydr roller lifters, comp .80 wall pushrods, harlan 1.6 pedestral rockers, ported magnum original heads, M1 intake, 750 db holley,