DECIDED TO CHANGE MY SETUP A BIT. I built a 250 cylinder head about 12 yrs ago and never used it in fact i forgot I even still had it until I got into the 6cyl head frame of mind ! (getting old is tough LOL) so my head choice is now a mildly ported 250 that has 1.94 int & 1.60 exh swirl polished necked down stem stainless valves and chambers slightly relief cut & polished to inprove flow of the bigger valves. it has the bosses in the intake ports removed so I,am gonna buy some lump ports for it. sure hope them lump ports dont come loose over time ! it also has screw in rocker arm studs. since the cc's of the chambers are larger I had th head cut .010. found a n.o.s. GM 292 steel head gasket. I think I,ll also cut the top of the block down to .005 deck height to help with compression. OH yeah I found a almost new 390 holley 4 bbl /electric choke #8007.
Last edited by bcowanwheels; 10/25/11 06:43 PM.
