the RPM heads are worth about 50-70hp done right {something like 70 lbs too}, over stock iron replacements & more if ported correctly, used with the right camshaft... the weight off the nose is a good idea too, less weight, better reaction times, better shock response, better weight transfer, better/quicker cooling & braking too, less wear & tear when weight is reduced... It's a win-win removing weight from the front of the car... move the battery to the trunk also {get a lightweight racing battery if fund allow}, if you haven't already... weight saving anywhere is good for the power to weight ratio, as long as you don't compromise structure & strength, you still will have the same HP with a lighter car, just means more power to weight ratio... hood, bumpers & brackets, doors, trunk lid, side glass to Lexan, front fenders, rims, driveshaft, replace anything cast iron or steel with aluminum or fiberglass, like heads, acc. brackets, water pump housing & radiator, nut's & bolts even, body panels etc... even stuff like titanium or aluminum bolts here & there, can make a difference you can do a few at a time, just be aware of when you change parts, not to use heavy crap if it's not needed for strength, but you don't have to go crazy, some of the smaller nuts, bolts & washers are relatively cheap, to go to aluminum or titanium components... also remove carpeting, insulation, sound deadening, undercoating, stock interior, back seat, crap in the trunk etc.... replace using lighter materials, light racing seats aluminum panels etc. or just remove altogether, when going to the track... spend some time with a few various sized hole saws or drill bits, in areas that are NOT structural or in plain site, that could be lightened... there's always places you can go lighter... good luck, have fun
