[agawam]

in my opinion the 289 is too small for cleveland heads the power band won't start till you are way up in the rpms. but if you must,I have a 302 clevor it has 1971 351 2v heads and clevor type pistons runs around 9.0 compression it also runs a Boss 302 intake, yes it fits,the intake ports had to be ground(flaired)to match the intake and boss intake gaskets were used. the head gaskets are 351c and the block(deck surface)needs 3 holes drilled for cooling. the cam isn't really radical, dosen't have to be. the power doesen't come on till around36or 3800 then goes a little nutty. I found this engine not a lot of fun to drive, and tricky to build and for the cost you could invest in a good set of aftermarket heads that would be more user friednly or try some 69 to 72 351W heads, just open up the exhausts a bit and cut 030 off the surface for some more compression(stock for 289) you'll need new head bolts to do this, I'm doing one now... Boss 302s are cleveland engines not windsors