A Holiday Rambler! 1987 HR Imperial 33 motorhome.
The coach is in real good shape. Only 33k miles.
But its powered by a chebby 454/auto trans.A california smog 454. Complete with the smog pump,and sealed Quadra-junk carb.
Sooooo, what can I do to improve on the 7mpg fuel efficiency?
Aside from the $3000 Holley EFI conversion.
It's been 35 yrs since I fooled wit a big block Chebby. What da latest?
The thing revs 3200 rpm@ 60 mph!