75scarab Posted September 29, 2011 Share Posted September 29, 2011 I did some searching, and was more or less unsuccessful in finding what I was looking for. I have a 75 280, and am almost done building my 327 chebby. trans is t-5, and am REALLY curious if someone could toss some mpg estimates my way. Again, sorry for probable repost. Quote Link to comment Share on other sites More sharing options...
jt1 Posted September 29, 2011 Share Posted September 29, 2011 When my 73 240Z with 350 sbc was still a street car,in an approximate 300rwhp state of tune, it would get 20-22 mpg with some enthusiastic/some sensible driving. Welcome to HybridZ. jt Quote Link to comment Share on other sites More sharing options...
strotter Posted September 30, 2011 Share Posted September 30, 2011 I had a 327 in my Z, in front of a T-5, for some time. Nice combo. It was injected (GM ECM and throttle body on a single-plane), moderately aggressive cam (Comp Cams Xr282), roller everything, flat-tops, and block-huggers to dual 2.25's, ran in the upper 12's. Once tuned, mileage was in the low 20's overall, high 20's on the highway, subtracting getting goofy with it. Note that it shredded a T-5 within 5,000 miles. Actually, a couple. Then it blew up. Well, actually spun a bearing. I miss it, though. Quote Link to comment Share on other sites More sharing options...
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