Hey boys, a short while ago I had the misfortune of snapping the crank in my gt40p headed 302 (how/why it snapped I have no idea) so I am currently going through the rebuilding process to get her back on the road..I already have a shortblock all done up and ready to go..HOWEVER, when the crank snapped I bent a few valves so I sent the heads off to get new valves and then the guy doing the work for me says he wants to put 1.94/1.60 valves in my heads and port them for me for $200..hes done a couple sets of P heads and has flow bench tested them at 239 [email protected] on the intake..my question is will I feel a noticeable difference after getting them ported, would there be any dangers associated with porting these heads (exhaust side too open..too much heat?) and will I need to get my explorer intake opened up more to support the extra air? I already have a bigger cam, obviously I have all the explorer stuff, and I have long tubes, off-road H and super 10s..so I'm not really worried about choking the thing on the exhaust side..any input is much appreciated..thanks!