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Message: <blockquote data-quote="swampratt" data-source="post: 3671687" data-attributes="member: 15054">I had 2 friends  with the HO 351 and I tweaked one of them for more power with carb tweaking  and timing curves.It was in a 1984 E250 and I had  a 302 .030" over in my 84E150 .I added another overload spring and dual shocks up front and 3" lift at that time was on my 150.He did not have any seats in his Van or interior except door panels other than driver and passenger. I had 4 captain chairs and a fold down bead and all carpeted head to toe.Weight I would guess were about the same as  they use the same frame .I would out run him easy with the 306" ford but I did port my heads and ported the exhaust manifolds and intake manifold.260H comp cam and 2 barrel carb , 3" single exhaust.AOD in both of the vehicles my van averaged 17.6 MPG and I did not use the OD as it was too tall and I had 3.50 gears.Other buddies 351HO was in a truck and it finally gave up and a 350" chevy was stuck into it and it had way more power everywhere.My 306" after 13 years developed a miss and traced down to 1 cylinder that needed the valve lapped in.Buddy needed a good engine and trans for his truck and ran a machine shop so I gave him that deal.I then mocked up my E150 for a SBC.Gas then went to 4 bucks a gallon and i parted the project out.Was only me and the wife and she never went anywhere with me so I decided to get a Geo metro and jacked it up and painted it camo.If you are going to swap something in there  think really hard about what would work best for you.I kind of wish i had put one of my 455 Olds engines into that Van.But with gas so high I was shooting for 20 MPG.Hard to get from a 6000 lb brick.</blockquote>

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