Get 3/8 sending unit,run braided steel lines all the way to engine bay run regulator .then u can run it to ur carb and to the unit(nos) also.and trust invest the 300 bucks and get a wideband. Ay exhaust shop will weld in the bung for 10 to 20 bucks.then when u have all bugs worked out with leaks and fuel pressure then run the unit and it will be a lot easier to tune. learned the hard way do it right the first time. And future get good heads,cam,intake, carb(built to ur motors specs)and u won't have issues.....as for suspension comp engin. Shocks front rear ,ss springs,snubber...cheap and effective my car hooks on the street and track 1.4 60 ft times