I just acquired two Cleveland 2V heads and a Street Boss 302 intake. I have a 289 torn down right now in the shop. Could I use the 289 as a base, or maybe use the rods and block with a 302 Crank? Or should I just try and find a 302 short block? Article I have says to use Boss 302 pistons with 289 Rods. If I go 302 block and crank, can I go with a roller block rather than flat tappet?