I have a EA81 4spd in my 85 Brat. It is really an older engine with the non hydro lifters. I have all new everything on it, plugs, wires, cap, rotor, weber, clutch, fuel pump, you name it, I have gone through it. (I bought it not running with a bad motor after it had sat a while so I just went through everything to avoid issues) I have a 2 inch lift, 14inch tires with 10ply BFG's so they are a little heavy. My main question is this: Since I have only had bad motors in it since I have had it, what kind of performance should I expect from this on the highway? Driving on good paved highway, while going up hills, I am lucky to top most hills above 45mph. I am flooring it, even down hill, I floor it and the best I can get is 65mph. Since I have never owned a "good" roo, I am not sure what I should be capable of. Do you think the tires being heavy are that sapping on power? I have never checked compression yet as I was told by a USMB member it was a strong engine when I bought it. I am still planning on building the stock motor sometime but for now just wondering. Oh, and also I get about 22mpg with the weber and it uses no oil. Maybe I am missing something?
Thanks for any suggestions and help.