|
|
|
|
Original Message
|
| RE: 2x4 on 390? |
| By walt - 05/26/2006 10:20:40 PM; IP 69.218.156.126 |
| 10 mpg,kind of pushing it,aren't we?,and i had some 652 center squiters,and no power valve provision in the metering blocks,on my 2x4 single plane 427 tp,i was luckey if i got 5 mpg,but it ran hard,to the next fuel stop.,good thing premium leaded was 35 cent's a gallon then,the carbs 4224 holley squirters,and all they knew was rich and how to load up the plugs,and deliver power in the broad rpm spectrum,5000 rpm plus,and a set of plugs after a night of cruising,run headers a good cam,depending on your rear gear,valve trian capabilities,weight of car,and i think the big block responds with more lift,shorter duration cams,and the smaller ported,valve engine could use a slightly more duration cams,small ports protected the tourque curve at lower speeds,that what i feel,but there are other trains of thought in cams and valve train,wich are valid and need to be looked at,remember how do want to use this car? |
|
|
This thread, so far...
|
|
|
|
Post A Response
|
|
|
|
|
|