well the reason i went with a chevy was because i had a extra out of date sprintcar motor laying around in the shop my crew cheif said lets put that in the cobra ok so i took the 17to 1's out changed cams converted the inj. to efi. boy was that alot of work to get the fuel map correct. the injector is over 3000cfm with brodex-12's the heads were about the cost of the ffr kit alone to do it all over i would go with a LT-1 AND BE JUST AS HAPPY because it just kills tires been through R-1's so2's now yok's A032R's working on billit irs set up now i will post pictures when i am done next week jim