notchbackmatt87

my freinds got stock e7s that flow just as good as afrs all depends on the port work. and what your looking for i got mine done why cause i wanted a cam and i got some good port work im going to run my ported with bigger valves e7s with a 303 and scorpion rockers with a 100 shot ill be happy

nitrous_bob

are they 40's or p40's ?

regular 40's use any header, p's are a little diferent though

89bulletlx

they are p40 heads . ive never heard e7s being worth a s*** . the guy at the head shop said its not woth the time or money. plus the will never flow like afrs

88ttops

Go with the AFR's the FRPP GT40 head use 20 year old technology and dont flow nearly as well as the AFR's. Spend the money get the good head and remember its not always the cfm it is th design and velosity of the port and the shape of the chamber.. If you really want to flow go with the Trick flow because when you step up the make big numbers when ported.

gspfunk

Check out Tom Moss's site (tmossporting.com ??) if you want some real world #'s/info about ported E7's. You CAN make them flow well, but, like previously mentioned, the work is absolutely not worth it. There is a dyno graph on the site that shows 292 rwhp w/ the heavily worked E7's...that's a great #, but you could get that w/ little or no work w/ AFR's or another aftermarket head. Unless you want to spend a decent chunk of $$, you'll never see near that 292 hp at the wheels w/ E7's.