MustangWorks.com : Ford Forums - View Single Post - OK im finally going to do it....now what?

hobgoblin351 · 02-08-2003, 10:49 AM

If you're gonna run unleaded gas on old heads, yes, you should get the hardened exhaust seats. Will your engine die in a week without them? No, but if you're spending $$$ on a new engine dont you want it to stick around for as long as possible.
That cam sounds cool. If you want even better port velocities try putting on a set of port plates. They'll take away that dead spot in the runner and wont hurt your top end.

What manifold/carb setup are you using?

02-08-2003, 10:49 AM	#4
hobgoblin351 Registered Member Join Date: Sep 2002 Location: NYC Posts: 245	If you're gonna run unleaded gas on old heads, yes, you should get the hardened exhaust seats. Will your engine die in a week without them? No, but if you're spending $$$ on a new engine dont you want it to stick around for as long as possible. That cam sounds cool. If you want even better port velocities try putting on a set of port plates. They'll take away that dead spot in the runner and wont hurt your top end. What manifold/carb setup are you using? __________________ 1970 Stang Conv: en:Boss351 (balanced/blueprinted) mech cam(240*@.050/.540 lift) Scrw in studs/comp cams rllr rkr Mldn valves 2.19in 1.71ex ported polished cc'd hrdnd ex Keith Black FT pistons(10.25/1) Weiand Excellorator manifold Holley700 DP mech 2nds MSD 6 box and Dis Headers/2 1/2 inch duels tr: modified FMX re:9-inch/3.89 limited slip