Rick I have a 4B cleveland. It is a BOSS, but is essentially the same engine. I am running the GA BOSS heads with all ford BOSS parts ( SS valves and D221 springs ). My CAM is 288 at .540 lift with about .110 clearance. I have a IR distributor with NO vac advance made by Mallory. Accel super coil with 300+ series wires and #4 plugs gapped at .035. Plugs are seated to 10 foot pounds ( I think it's 10 ). I have a First generation Edelbrock Torquer intake with a -1 series Holley 3310 ( 780 CFM, Vac sec. ). Block is 4 bolt mains with ARP studs everywhere. 10.25:1 compression using forged TRW pistons and perfect circle rings.
I machined the
oil passeges for .100 restrictors and use a 3/8 SS diverter from the
oil pickup at the filter tot he
oil pressure port at the top rear of the engine.
I run mobil 1, 15w - 50, 8 qrts with a billet drive to a mellings oil pump.
Thats the engine. I have the initial timing set at 18 and have 36 total at 2500.
How is that CAM change going?