I have owned my 67 400 4 spd vert for fifty years (2nd owner)... Over those years I have made some changes to suit my liking. Nothing I have done is irreversable and I have saved most of the original parts. Here are some of those mods: Aluminum intake manifold with Holley carb, HEI ignition, headers with dual exhaust and mufflers, Front drum brakes replaced w/ C5 Corvette front disk brakes w/ proper master cylinder, bias valve and power brake booster. C5 Corvette 17" wheels. The original engine was rebuilt w/ .030 pistons (406 cid) and a mild cam. This car is a numbers matching survivor with no rust or bondo and is in great shape. Interior is near perfict. I have saved most of the original parts. My question is, how much have I hurt the value of the car. If I leave it with the mods? I could return the car to all original condition with some dificulty finding the parts that did not get saved, ie, exhaust manifolds and cross flow muffler, quadrajet carb, and original wheels. How much would this improve the value? Shirl Dickey
With car prices still in the toilet, it likely does not matter at all.
I'd say keep most (if not all) original parts, and that would likely satisfy any potential future Owners.
Like Bjorn said, probably did not move the dial much one way or the other.
I used to be indecisive. Now I'm not sure. I feel like I am diagonally parked in a parallel universe. 1968 400 convertible (Scarlet) 1976 T/A - 455 LE (No Burt) 1976 T/A New baby, starting full restoration. 1968 350 - 4 speed 'vert - 400 clone (the Beast!) 1968 350 convertible - Wife's car now- 400 clone (Aleutian Blue) (Blue Angel) 2008 Durango - DD 2008 GXP - New one from NH is AWESOME! 2017 Durango Citadel - Modern is nice! HEMI is amazing! 1998 Silverado Z71 - Father-daughter project 1968 400 coupe - R/A clone (Blue Pearl) (sold) 1967 326 convertible - Sold 1980 T/A SE Bandit - Sold